<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>
<body>
    <style>
        *{
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }

        .nav{
            width: 100%;
            height: 80px;
            background-color: aqua;
            color: rgb(15, 13, 13);
            text-align: center;
            line-height: 80px;
            font-size: 20px;
        }
        .container{
            width: 100%;
            height: 1000px;
            background-color: aliceblue;

            display: flex;
            justify-content: center;
            align-items: center;
        }

        .container .left,.container .right{
            height: 100%;
            width: 15%;
            background-color: aquamarine;
            text-align: center;
            color: #000;
            font-size: 20px;
        }

        .container .content{
            height: 100%;
            width: 70%;
            background-color: aliceblue;
        }

        .footer{
            width: 100%;
            height: 100%;
            background-color:#0A408A;
            text-align: center;
            font-size: 20px;
            color: #000;
            background-image: url(http://i.cqie.edu.cn/resources/style/pc/images/newicon/foot_logo.png);
            background-repeat: no-repeat;


        }
        


    </style>



    <div class="nav">
        导航栏
    </div>

    <div class="container">
        <div class="left">左侧边栏</div>
        <div class="content">中间边栏</div>
        <div class="right">右侧边栏</div>
    </div>

    <div class="footer">
    <h4>南泉校区</h4>
    <p>地址：重庆市巴南区南泉街道白鹤林16号</p>
    <p>电话：023-62846626； 023-62846636</p>
    <p>邮编：400056</p>

    </div>

    


</body>
</html>